MOVITRAC
®
31.. PROFIBUS Fieldbus Interface
25
The PROFIBUS-DP
Interface
3
3 .4.1
Data in Octet 1: Station Status 1
Fig. 30 shows the coding of octet Station Status 1 in accordance with EN 50170 V2 / DIN E 19245
Part 3. Station status 1 comprises information which is either generated by the master or by the DP
slave itself. The bits which are controlled by the master are generally set to zero by the DP slave. In
the following the individual status bits will be discussed in greater detail.
01182AEN
Fig. 30: Coding of the octet Station Status 1 according to EN 50170 V2 / DIN E 19245 Part 3
Individual bits have the following meaning in accordance with DIN E 19245 Part 3:
Bit 7: Diag.Master_Lock
The frequency inverter as DP slave sets this bit permanently at zero.
This bit is set by the DP master (class 1) if the address in octet 4 is not equal FF
hex
and not
equal to its own address. It indicates that the MOVITRAC
®
31.. frequency inverter has parame-
ters set by a different master with the
DDLM Set_Prm service.
Bit 6: Diag.Prm_Fault
This bit is set by the MOVITRAC
®
31.. frequency inverter as DP slave if the last parameter
message (
DDLM_Set_Prm) was incorrect, e.g. incorrect length, incorrect Ident Number, etc.
Bit 5: Diag.Invalid_Slave_Response
The frequency inverter as DP slave sets this bit permanently at zero.
This bit is set by the DP master if an invalid response was received from the MOVITRAC
®
31..
frequency inverter.
Bit 4: Diag.Not_Supported
This bit is set by the MOVITRAC
®
31.. frequency inverter as DP slave if a function is requested
which was not supported by the frequency inverter.
7
LSB
MSB
6
5
4
3
2
1
0
Diag.Ext_Diag
Diag.Prm_Fault
Diag.Invalid_Slave_Response *
Diag.Not_Supported
Diag.Master_Lock *
Diag.Cfg_Fault
Diag.Station_Not_Ready
Diag.Station_Non_Existent *
Octet 1: Station Status 1
Bit no.
* = This bit is only set by the DP master. The MOVITRAC
®
inverter sets this bit permanently at zero.
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